Mechanical changes to 375 files to change dependency patterns of the form
foo-* to foo-[0-9]*. This is to cause the dependencies to match only the
packages whose base package name is "foo", and not those named "foo-bar".
A concrete example is p5-Net-* matching p5-Net-DNS as well as p5-Net. Also
change dependency examples in Packages.txt to reflect this.

When multi-line dependencies occur, use a "DEPENDS+= package" format
for each of the continuation lines, rather than using backslashes to
continue a single, long definition. This makes it much easier to spot
pre-requisite packages and other dependencies.